Laser-amplifier-arrangement for e.g. robots, has thulium doped laser crystal pumped by diode laser and activating holmium-doped laser crystal, where diode laser exhibits pumping power of two hundred watts

摘要

The arrangement (10a) has a thulium doped laser crystal (18) pumped by a high-power diode laser (12) and activating a holmium-doped laser crystal (24). The laser crystal (24) amplifies a beam of a pulsed holmium laser (30). The laser crystal (18) is formed as a solid-state laser crystal and the diode laser exhibits a pumping power of 200 watts. A quartz fiber line (14) is arranged between the diode laser and the laser crystal (18). The fiber line has a cross section of 100 micrometers to 1000 micrometers and a length of 10 centimeters to 200 meter.